:root {
    --primary-color: #00a4dc;
    --error-color: #dc3545;
    --success-color: #28a745;
    --background-color: #f5f5f5;
    --container-bg: #ffffff;
    --text-color: #333333;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', sans-serif;
    background: url('images/background.jpg') no-repeat center center fixed;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
}

.main-wrapper {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    background-color: rgba(0, 0, 0, 0.7);
}

.container {
    background-color: var(--container-bg);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
}

.logo-container {
    text-align: center;
    margin-bottom: 1rem;
}

.header-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--text-color);
}

.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.input-group {
    position: relative;
}

.input-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: #666;
}

input {
    width: 100%;
    padding: 0.8rem 1rem 0.8rem 2.5rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 164, 220, 0.2);
}

button {
    width: 100%;
    padding: 0.8rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #0088b9;
}

.message {
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 5px;
    text-align: center;
}

.success {
    background-color: rgba(40, 167, 69, 0.1);
    border: 1px solid var(--success-color);
    color: var(--success-color);
}

.error {
    background-color: rgba(220, 53, 69, 0.1);
    border: 1px solid var(--error-color);
    color: var(--error-color);
}

@media (max-width: 480px) {
    .container {
        padding: 1.5rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
}

.navbar {
    background-color: rgba(52, 58, 64, 0.8);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 1rem 2rem;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.navbar-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: bold;
    color: white;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.navbar-brand:hover {
    opacity: 0.8;
}

.navbar-menu {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.navbar-item a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    background-color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: background-color 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-item a:hover {
    background-color: #0088b9;
    color: white;
}

.navbar-item a i {
    margin-right: 5px;
}

.navbar-slogan {
    color: var(--primary-color);
    font-size: 1.2rem;
    font-weight: 500;
    margin: 0 2rem;
}

@media (max-width: 768px) {
    .navbar {
        padding: 1rem;
    }
    
    .navbar-container {
        position: relative;
    }
    
    .navbar-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: rgba(52, 58, 64, 0.95);
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
        padding: 1rem;
        border-radius: 0 0 10px 10px;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        margin-top: 1rem;
    }
    
    .navbar-menu.active {
        display: flex;
        flex-direction: column;
        gap: 1rem;
    }
    
    .navbar-toggle {
        display: block;
        background: none;
        border: none;
        color: white;
        font-size: 1.5rem;
        cursor: pointer;
        padding: 0.5rem;
        transition: opacity 0.3s ease;
    }

    .navbar-toggle:hover {
        opacity: 0.8;
    }

    .navbar-item {
        width: 100%;
    }

    .navbar-item a {
        width: 100%;
        justify-content: center;
    }
}

@media (min-width: 769px) {
    .navbar-toggle {
        display: none;
    }
}

.welcome-title {
    text-align: center;
    margin-bottom: 2rem;
    color: black;
    font-weight: 700;
    font-size: 2.2rem;
    letter-spacing: 1px;
    padding: 1rem 2rem;
    border-radius: 8px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.welcome-title strong {
    color: var(--primary-color);
}